Description
The 200mm sealed manhole cover and frame completes a compatible shallow inspection chamber. It gives a secure access point for inspection, rodding and maintenance on smaller underground drainage systems.
This cover and frame suits compact 200mm chamber installations, including 4DI600-style shallow inspection chamber setups. It is commonly used with 110mm underground drainage systems on domestic drainage, extensions, repairs, garden drainage and light-duty site work.
The 4DIFC1 reference is linked to the Terrain / Polypipe underground drainage range. Official Terrain information lists 4DIFC1 as a sealed cover and frame for the 4DI600 shallow inspection chamber.
200mm Sealed Manhole Cover for Drainage Chambers
The 200mm sealed manhole cover helps close the top of a compatible inspection chamber. It also allows future access when the drainage system needs checking or cleaning.
Use this cover where the chamber, riser and frame are all compatible. Before installation, check the chamber size, finished ground level and loading requirement.
- 200mm sealed manhole cover and frame
- Suitable for compatible shallow inspection chambers
- Terrain / Polypipe reference 4DIFC1
- Designed for 4DI600-style chamber setups
- Provides access for inspection, rodding and maintenance
- Useful for smaller domestic drainage layouts
- Suitable for 110mm underground drainage chamber systems when compatible
Cover and Frame Connection
This 200mm sealed manhole cover sits on a compatible chamber shaft. Terrain data lists the 4DIFC1 cover and frame with a ring seal joint to the shaft.
For best results, make sure the chamber top is clean and level before fitting the cover. The frame should sit evenly and remain properly supported after installation.
If the chamber is in an area where it may be disturbed, check the site requirements before fitting. Also, confirm that the cover suits the expected use and loading.
Installation Use
Install the 200mm sealed manhole cover as part of a complete inspection chamber setup. The cover should remain accessible after the drainage work is finished.
Correct bedding, backfill and support help keep the chamber stable. Therefore, the chamber base, riser and cover should all be fitted square and level.
This product is not a chamber base on its own. It should only be used with a suitable compatible chamber base or riser system.
Drainage Access for Site Work
This cover and frame is useful for builders, groundworkers, landscapers and drainage installers. It can be used on smaller drainage layouts, repairs, extensions and outbuilding drainage work.
It helps create a neat access point while keeping the chamber closed when not in use. However, always check compatibility before ordering or installing the product.
Compatible Manhole Chamber Products
This 200mm sealed manhole cover is part of the wider TWS manhole base and inspection chamber range. You can match it with compatible chamber bases, risers, drainage pipe and underground drainage fittings.
View 200mm manhole inspection chambers at TWS.
View 110mm manhole inspection chambers at TWS.
View all manhole bases and inspection chambers at TWS.
Shop all underground drainage at TWS.
For official manufacturer information, see the Terrain underground inspection chambers product information.
